PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3 1-2BResistor,fixed,wire Wound

Ward Leonard Ct Llc · NSN 5905-00-100-4973 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-100-4973 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-100-4973. Primary manufacturer part number: 3 1-2B.
Features
  • Resistor,fixed,wire Wound — FSC 5905
  • Reliability Indicator: NOT ESTABLISHED
  • Ambient Temp at Full Rated Power: 40.0 CELSIUS DEGC
  • Terminal Length: 0.531 INCHES NOMINAL IN
  • Inclosure Type: ENCAPSULATED
  • Style Designator: RADIAL TERMINAL EACH END
  • Ambient Temp in Deg Celsius at Zero Percent Rated Power: 340.0
  • Power Dissipation Rating in Watts: 40.000 FREE AIR
Applications
  • Electrical power distribution
  • Signal transmission
  • Equipment interconnection
  • Circuit regulation and filtering
  • Signal conditioning
General Description

The Resistor,fixed,wire Wound, cataloged under National Stock Number 5905-00-100-4973, is classified within Federal Supply Class 5905 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Ward Leonard Ct Llc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-100-4973
Primary Part Number3 1-2B
Item NameResistor,fixed,wire Wound
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerWard Leonard Ct Llc
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Ambient Temp at Full Rated Power40.0 CELSIUS DEGC
Terminal Length0.531 INCHES NOMINAL IN
Inclosure TypeENCAPSULATED
Style DesignatorRADIAL TERMINAL EACH END
Ambient Temp in Deg Celsius at Zero Percent Rated Power340.0
Power Dissipation Rating in Watts40.000 FREE AIR
Terminal TypeTAB, SOLDER LUG
Body Length3.500 INCHES NOMINAL IN
Electrical Resistance100.000 OHMS
Resistance Tolerance in Percent-5.000 TO 5.000
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5905-00-100-70203 1-2INL4 INTERCHANGEABLE
Resistor,fixed,wire Wound
Memcor Inc
5905-00-100-7889185769-115ALT55 INTERCHANGEABLE
Resistor,fixed,wire Wound
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5905-00-100-7921738-419ALT1 INTERCHANGEABLE
Resistor,fixed,wire Wound
Raytheon Company Dba Raytheon Co
4310-00-119-3229312B INTERCHANGEABLE
Cylinder Head,compressor
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
5905-00-202-0134211H-40MA-40A-750R0J INTERCHANGEABLE
Resistor,adjustable
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5110-00-408-2026AIW6700 INTERCHANGEABLE
Cutter,cable,hand Operated
Aiw-Alton Inc
4320-00-890-230179002-3911 INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
6625-01-012-1071 INTERCHANGEABLE
Voltmeter
6130-01-025-1538580352 INTERCHANGEABLE
Power Supply
Shigamo Development Inc Div American High Voltage
Cross-Reference Index
Part NumberManufacturer
BA10051-30ISSUE19 American Telephone and Telegraph Co (USA)
BA10051-301 Ward Leonard Ct Llc (USA)
BA10051-301 American Telephone and Telegraph Co (USA)
3 1-2B PRIMARY Ward Leonard Ct Llc (USA)
Related Parts
5905-00-100-7020INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
3 1-2INL4
5905-00-100-7889INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
185769-115ALT55
5905-00-100-7921INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
738-419ALT1
4310-00-119-3229INTERCHANGEABLE
CYLINDER HEAD,COMPRESSOR
312B
5905-00-202-0134INTERCHANGEABLE
RESISTOR,ADJUSTABLE
211H-40MA-40A-750R0J
5110-00-408-2026INTERCHANGEABLE
CUTTER,CABLE,HAND OPERATED
AIW6700
4320-00-890-2301INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
79002-3911
6625-01-012-1071INTERCHANGEABLE
VOLTMETER
6130-01-025-1538INTERCHANGEABLE
POWER SUPPLY
580352

Frequently Asked Questions

What is NSN 5905-00-100-4973?

NSN 5905-00-100-4973 is a Resistor,fixed,wire Wound, manufactured by Ward Leonard Ct Llc, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-100-4973?

NSN 5905-00-100-4973 has 4 cross-referenced part numbers: BA10051-30ISSUE19 (American Telephone and Telegraph Co), BA10051-301 (Ward Leonard Ct Llc), BA10051-301 (American Telephone and Telegraph Co), 3 1-2B (Ward Leonard Ct Llc).

What NSN replaces 5905-00-100-4973?

There are 9 known substitutes for 5905-00-100-4973: 5905-00-100-7020, 5905-00-100-7889, 5905-00-100-7921 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3 1-2B?

Key specifications for 3 1-2B: Reliability Indicator: NOT ESTABLISHED; Ambient Temp at Full Rated Power: 40.0 CELSIUS DEGC; Terminal Length: 0.531 INCHES NOMINAL IN; Inclosure Type: ENCAPSULATED. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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